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Method and device for face tracking

A technology of face tracking and face tracking, which is applied in the field of face tracking, can solve the problems of low processing efficiency, large amount of calculation, and occupying a lot of system resources, and achieve the effect of improving processing efficiency, reducing the degree of influence, and reducing the amount of calculation

Active Publication Date: 2017-05-10
TCL CORPORATION
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Problems solved by technology

[0006] The purpose of the embodiments of the present invention is to provide a method for face tracking, aiming to solve the problems that the current face tracking method for video has a large amount of computation, takes up a lot of system resources, and has low processing efficiency

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  • Method and device for face tracking

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] In the embodiment of the present invention, by using the image position of the face detection frame in the previous image frame in the video as the position of the image area where the face is aligned in the current image frame, the image in the area is aligned to locate the face The feature point position of the face, and determine the face detection frame in the current image frame according to the feature point position of the face. The embodiments of the present invention do not need to perform global detection on each frame of video images when performing face tracking on video images, ...

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Abstract

The invention is applied to the technical field of image detection and provides a method and a device for face tracking. The method comprises the steps of acquiring an image position of a face detection box in a previous image frame; locating a region which is the same as the image position in a current image frame; carrying out face alignment between an image in the region located in the current image frame and a front template of a face in the face detection box to acquire characteristic point positions of the face in a current image; determining the face detection box in the current image frame according to the acquired characteristic point positions. When face tracking is carried out on a video image, overall situation is not needed for each frame of image in a video, the calculation quantity for face tracking in the video is reduced, the processing efficiency is improved and the influence degree of video definition for processing is reduced.

Description

technical field [0001] The invention belongs to the field of image detection, in particular to a method and device for face tracking. Background technique [0002] Face tracking technology is a face detection technology that tracks the position and features of the face in the video captured by the camera based on the facial feature information of the person. Such as figure 1 As shown, there are usually three types of face positions on the image: face pitch caused by head up or down, face yaw caused by head turning left or right, and face roll caused by head tilting left or right. Wherein the facial roll refers to the rotation of the human face at a certain angle with the normal vector of the plane where the human face is located as the axis. [0003] At present, the object of face tracking research work is mainly frontal or near-frontal face images, that is, face alignment (Face Alignment) algorithm for such as figure 2 Frontal face images shown for face tracking and ali...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V40/161G06V40/168
Inventor 张铂翼
Owner TCL CORPORATION
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